______ are nine.
A:Three threes B:Three and three C:Three three D:Three and threes
{{B}}第三篇{{/B}}
? ? ‘I. Q.’ stands for Intelligence
Quotient which is a measure of a person’s intelligence found by means of an
intelligence test. Before marks gained in such a test can be useful as
information about a person, they must be compared with some standard, or norm.
It is not enough simply to know that a boy of thirteen has scored, say, ninety
marks in a particular test. To know whether he is clever, average or dull, his
marks must be Compared with the average achieved by boys of thirteen in that
test.
? ?In 1906 the psychologist, Alfred Binet(1857—1911), devised
the standard in relation to which intelligence has since been assessed. Binet
was asked to find a method of selecting all children in the schools of Paris who
should be taken out of ordinary classes and put in special classes for
defectives. The problem brought home to him the need for a atandard of
intelligence, and he hit upon the very simple concept of "mental age".
?
?First of all, he invented a variety of tests and put large numbers of
children of different ages through them. He then found at what age each test was
passed by the average child. For instance, he found that the average child of
seven could count backwards from 20 to 1 and the average child of three could
repeat the sentence: "We are going to have a good time in the country."
?Binet arranged the various tests in order of difficulty, and used them as
a scale against which he could measure every individual. If, for example, a boy
aged twelve could only do tests that were passed by the average boy of nine,
Binet held that he was three years below ave rage, and that he had a mental age
of nine.
? ?The concept of mental age provided Binet, and through
him, other psychologists, with the required standard. It enabled him to state
scores in intelligence tests in terms of a norm. At first, it was usual to
express the result of a test by the difference between the "mental" and the
"chronological" age. Then the boy in the example given would be "three years
retarded". Soon, however, the "mental ratio" was introduced; that is to say, the
ratio of the mental age to the chronological age. Thus a boy of twelve with a
mental age of nine has a mental ratio of 0.75.
? ?The mental age
was replaced by the "intelligence quotient" or "I. Q. ’. The "I. Q." is the
mental ratio multiplied by 100. For example, a boy of twelve with a mental age
of nine has an "I. Q." of 75. Clearly, since the mental age of the average child
is equal to the chronological age, the average ’I. Q.’ is
100. |
A child of ten who is two years retarded has a mental age of ______.
A:nine B:ten C:eight D:twelve
A
The water tap was leaking(漏水) again, and the noise was driving Cassie crazy.
Cassie looked at her watch. It was nearly nine o’ clock. She climbed out of bed and stood on a chair by the shelf. Her mother’ s Mr. Fix-It was on the top shelf. Cassie stepped down quietly. She read the book quickly until she found the page she was looking for, and then began to read carefully.
Next Cassie opened a box in the kitchen and picked out the tools she needed—a hammer, a wrench, and several small things. It was no easy job for her to do the repair, and she tried several times. Finally, the water tap was in pieces. One by one, she carefully laid them out on the table. That way she would know how they went back. While this was going on, her cat walked over to watch what she was doing.
Cassie worked late into the night. At one point, she thought she was done. Oops! A small piece that she had forgotten still lay on the table. Slowly Cassie took the water tap apart(分开) one more time. This time she made sure everything was in place. She turned the water tap on and then off. One ...two...three...She waited a full minute. There was no leak! Cassie smiled and put the tools back into the box. Then she went back into bed.
The next morning, Dad was in the kitchen when Cassie got up.
"Notice anything, Dad" she asked.
He looked around and listened. "Hmm, something’ s missing...I can’t find out what it is... Wait,it’ s too quiet in here ! "
"That’s right, "Cassie said. "Something is missing. I fixed the water tap. It doesn’ t leak any more. "
"That’s my girl," Dad said. "It’ s a good thing you are really like your mother.
The water tap wasn’ t fixed until（）.
A:nine o’clock B:late that night C:the next morning D:the next afternoon
A
The water tap was leaking(漏水)again,and the noise was driving Cassie crazy.
Cassie looked at her watch.It was nearly nine o’clock.She climbed out of bed and stood on a chair by the shelf.Her mother’s Mr.FixIt was on the top shelf.Cassie stepped down quietly.She read the book quickly until she found the page she was looking for,and then began to read carefully.
Next Cassie opened a box in the kitchen and picked out the tools she needed—a hammer,a wrench,and several small things.It was no easy job for her to do the repair,and she tried several times.Finally,the water tap was in pieces.One by one,she carefully laid them out on the table.That way she would know how they went back.While this was going on,her cat walked over to watch what she was doing.
Cassie worked late into the night.At one point,she thought she was done.Oops!A small piece that she had forgotten still lay on the table.Slowly Cassie took the water tap apart(分开)one more time.This time she made sure everything was in place.She turned the water tap on and then off.One…two…three…She waited a full minute.There was no leak!Cassie smiled and put the tools back into the box.Then she went back into bed.
The next morning,Dad was in the kitchen when Cassie got up.
“Notice anything,Dad”she asked.
He looked around and listened.“Hmm,something’s missing…I can’t find out what it is…Wait,it’s too quiet in here!”
“That’s right,”Cassie said.“Something is missing.I fixed the water tap.It doesn’t leak any more.”
“That’s my girl,”Dad said.“It’s a good thing you are really like your mother.”
The water tap wasn’t fixed until.
A:nine o’clock B:late that night C:the next morning D:the next afternoon
A
The water tap was leaking(漏水) again, and the noise was driving Cassie crazy.
Cassie looked at her watch. It was nearly nine o’ clock. She climbed out of bed and stood on a chair by the shelf. Her mother’ s Mr. Fix-It was on the top shelf. Cassie stepped down quietly. She read the book quickly until she found the page she was looking for, and then began to read carefully.
Next Cassie opened a box in the kitchen and picked out the tools she needed—a hammer, a wrench, and several small things. It was no easy job for her to do the repair, and she tried several times. Finally, the water tap was in pieces. One by one, she carefully laid them out on the table. That way she would know how they went back. While this was going on, her cat walked over to watch what she was doing.
Cassie worked late into the night. At one point, she thought she was done. Oops! A small piece that she had forgotten still lay on the table. Slowly Cassie took the water tap apart(分开) one more time. This time she made sure everything was in place. She turned the water tap on and then off. One ...two...three...She waited a full minute. There was no leak! Cassie smiled and put the tools back into the box. Then she went back into bed.
The next morning, Dad was in the kitchen when Cassie got up.
"Notice anything, Dad" she asked.
He looked around and listened. "Hmm, something’ s missing...I can’t find out what it is... Wait,it’ s too quiet in here ! "
"That’s right, "Cassie said. "Something is missing. I fixed the water tap. It doesn’ t leak any more. "
"That’s my girl," Dad said. "It’ s a good thing you are really like your mother.
The water tap wasn’ t fixed until（）.
A:nine o’clock B:late that night C:the next morning D:the next afternoon
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